ports and international borders. the fbi and about a dozen police and sheriff's departments also have them. critics say the drones are an invasion of privacy. >>> a pleasant surprise for people parking in san francisco. in fact, it maybe unprecedented! the city's newer sfpark meters charge less on average than the old models. the 7,000 newer devices set rates based on demand and since their installation last year, average hourly rates have dropped by 14 cents. 17% of those meters offer hourly rates of a dollar or less. >>> 5:51. ecuador on high alert after several volcano eruptions. >> and the duchess dazzles. kate middleton makes her first public appearance since leaving the hospital. ,, ,,,,,,,,,,,,,,,, >>> weak storm sliding through the bay area, a stronger line in the north bay through american canyon toward vallejo. more on your weather coming up. >> and we have lots of brake lights in sunnyvale north 101 at mathilda. two right lanes shut down for an injury accident. expect delays as you work your way through th